Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 28.92 kDa 
• Atom Count: 2,054 
• Modelled Residue Count: 227 
• Deposited Residue Count: 238 
• Unique protein chains: 1

 3P1C

Crystal structure of the bromodomain of human CREBBP in complex with acetylated lysine

• PDB DOI:  https://doi.org/10.2210/pdb3P1C/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-09-30 Released: 2010-11-24 
• Deposition Author(s): Filippakopoulos, P., Picaud, S., Feletar, I., Fedorov, O., Muniz, J., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Weigelt, J., Bountra, C., Knapp, S., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.218 
• R-Value Work: 0.166 
• R-Value Observed: 0.168 

Literature

Histone recognition and large-scale structural analysis of the human bromodomain family.

Filippakopoulos, P., Picaud, S., Mangos, M., Keates, T., Lambert, J.P., Barsyte-Lovejoy, D., Felletar, I., Volkmer, R., Muller, S., Pawson, T., Gingras, A.C., Arrowsmith, C.H., Knapp, S.

(2012) Cell 149: 214-231

• PubMed: 22464331 
• DOI: https://doi.org/10.1016/j.cell.2012.02.013
• Primary Citation of Related Structures:  
  2NXB, 2OO1, 2OSS, 2OUO, 2RFJ, 3D7C, 3DAI, 3DWY, 3GG3, 3HME, 3HMF, 3HMH, 3I3J, 3IU5, 3IU6, 3LXJ, 3MB3, 3MB4, 3MQM, 3NXB, 3P1C, 3P1D, 3Q2E, 3RCW, 3TLP, 3UV2, 3UV4, 3UV5, 3UVD, 3UVW, 3UVX, 3UVY, 3UW9


• PubMed Abstract: 
  

Bromodomains (BRDs) are protein interaction modules that specifically recognize ε-N-lysine acetylation motifs, a key event in the reading process of epigenetic marks. The 61 BRDs in the human genome cluster into eight families based on structure/sequence similarity. Here, we present 29 high-resolution crystal structures, covering all BRD families. Comprehensive crossfamily structural analysis identifies conserved and family-specific structural features that are necessary for specific acetylation-dependent substrate recognition. Screening of more than 30 representative BRDs against systematic histone-peptide arrays identifies new BRD substrates and reveals a strong influence of flanking posttranslational modifications, such as acetylation and phosphorylation, suggesting that BRDs recognize combinations of marks rather than singly acetylated sequences. We further uncovered a structural mechanism for the simultaneous binding and recognition of diverse diacetyl-containing peptides by BRD4. These data provide a foundation for structure-based drug design of specific inhibitors for this emerging target family.

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Organizational Affiliation: 

Nuffield Department of Clinical Medicine, Structural Genomics Consortium, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7LD, UK. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CREB-binding protein	A, B	119	Homo sapiens	Mutation(s): 0  Gene Names: CBP, CREBBP EC: 2.3.1.48 (PDB Primary Data), 2.3.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q92793 (Homo sapiens) Explore Q92793  Go to UniProtKB:  Q92793
PHAROS:  Q92793

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ALY	C [auth A], E [auth B]	N(6)-ACETYLLYSINE C8 H16 N2 O3 DTERQYGMUDWYAZ-ZETCQYMHSA-N
SCN	D [auth A]	THIOCYANATE ION C N S ZMZDMBWJUHKJPS-UHFFFAOYSA-M
K	F [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.82 Å
• R-Value Free: 0.218 
• R-Value Work: 0.166 
• R-Value Observed: 0.168 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 121.687	α = 90
b = 121.687	β = 90
c = 39.955	γ = 120

Software Package:

Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-11-24 
Deposition Author(s): Filippakopoulos, P., Picaud, S., Feletar, I., Fedorov, O., Muniz, J., von Delft, F., Arrowsmith, C.H., Edwards, A.M., Weigelt, J., Bountra, C., Knapp, S., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2010-11-24
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2012-04-11
  Changes: Database references
• Version 1.3: 2018-01-31
  Changes: Structure summary